private void MainForm_FormClosing(object sender, FormClosingEventArgs e)
{
if (bConnectedDevice)
{
try
{
Er302Helper.rf_ClosePort();
}
catch (Exception exception)
{
Console.WriteLine(exception);
}
bConnectedDevice = false;
}
}
// This command will read out the text string by NDEF formatted.
// More detail please reference the NTAG213 datasheet or else NDEF files.
// Read the UID of the NTAG CHIP befor this command!
public string nfcDataRead(bool bConnectedDevice)
{
string result = string.Empty;
short icdev = 0x0000;
int status;
byte npage = 0x00;
byte txtCode = 0x54;
int nPageCount = 0;
if (!bConnectedDevice)
{
MessageBox.Show("请连接NFC读写器！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return("");
}
npage = Convert.ToByte(6);// The special code and length data saved in page 6
IntPtr dataBuffer = Marshal.AllocHGlobal(256);
int j;
byte cLen = 0;
status = Er302Helper.rf_M1_read(icdev, (byte)(npage), dataBuffer, ref cLen); // This command will read out 4 pages=4*4=16(bytes).
if (status != 0 || cLen != 16)
{
MessageBox.Show("rf_M1_read failed!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
Marshal.FreeHGlobal(dataBuffer);
return("");
}
byte[] bytesData = new byte[4]; // 4 bytes for one page
for (j = 0; j < bytesData.Length; j++)
{
bytesData[j] = Marshal.ReadByte(dataBuffer, j);
}
if (bytesData[2] != txtCode)
{
MessageBox.Show("Ilegal NFC Text!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
Marshal.FreeHGlobal(dataBuffer);
return("");
}
byte nLen = 0;
nLen = bytesData[1]; // Length of the text file including 2 preamble bytes and 1 postamble byte(0xfe)
nPageCount = nLen / 4;
j = nLen % 4;
if (j > 0)
{
nPageCount = nPageCount + 1;
}
byte[] bytesReceiveData = new byte[256];
int i;
for (j = 7; j < (7 + nPageCount); j++) // read from page 7
{
status = Er302Helper.rf_M1_read(icdev, (byte)(j), dataBuffer, ref cLen);
if (status != 0 || cLen != 16)
{
MessageBox.Show("Read page failed!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
Marshal.FreeHGlobal(dataBuffer);
return("");
}
for (i = 0; i < 4; i++)
{
bytesReceiveData[4 * (j - 7) + i] = Marshal.ReadByte(dataBuffer, i);
}
}
byte[] bytesAsciiData = new byte[nLen - 3];
for (i = 2; i < nLen - 1; i++)
{
bytesAsciiData[i - 2] = Marshal.ReadByte(bytesReceiveData, i); // get the true text ascii code
}
result = System.Text.Encoding.ASCII.GetString(bytesAsciiData).Trim(); // Show the text string saved in the nfc chip.
Marshal.FreeHGlobal(dataBuffer);
int delaytime = 50;
Er302Helper.rf_beep(icdev, (byte)delaytime);
return(result);
}
/// <summary>
/// 将数据写入NFC卡，从0区0块开始写入，直到写完。
/// </summary>
/// <param name="mass">区</param>
/// <param name="submass">块1,2,3</param>
/// <param name="context">将要写入NFC卡的数据，小于32个字符</param>
public void WriteBlock(bool bConnectedDevice, int mass, int submass, string context)
{
NfcOperate nfcOperate = new NfcOperate();
short icdev = 0x0000;
int status;
byte mode = 0x60;//mode = 0x61; //密钥类型
string mima = "FFFFFFFFFFFF";
byte secnr = 0x00;
byte adr;
int i;
if (!bConnectedDevice)
{
MessageBox.Show("请连接NFC读写器！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
secnr = Convert.ToByte(mass); //cbxMass2这个是区
adr = (byte)(Convert.ToByte(submass) + secnr * 4); //这个是块cbxSubmass2
if (submass == 4)
{
if (DialogResult.Cancel == MessageBox.Show("不允许写每个区的最后一块", "警告", MessageBoxButtons.OKCancel, MessageBoxIcon.Warning))
{
return;
}
}
IntPtr keyBuffer = Marshal.AllocHGlobal(1024);
//txtInputKey2.Text是每个扇区的密码FFFFFFFFFFFF
byte[] bytesKey = nfcOperate.ToDigitsBytes(mima);
for (i = 0; i < bytesKey.Length; i++)
{
Marshal.WriteByte(keyBuffer, i, bytesKey[i]);
}
status = Er302Helper.rf_M1_authentication2(icdev, mode, (byte)(secnr * 4), keyBuffer);
Marshal.FreeHGlobal(keyBuffer);
if (status != 0)
{
MessageBox.Show("rf_M1_authentication2 failed!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
//
byte[] bytesBlock;
if (submass == 1)
{
bytesBlock = nfcOperate.ToDigitsBytes(context);
}
else if (submass == 2)
{
bytesBlock = nfcOperate.ToDigitsBytes(context);
}
else if (submass == 3)
{
bytesBlock = nfcOperate.ToDigitsBytes(context);
}
else
{
String strCompont = context;
bytesBlock = nfcOperate.ToDigitsBytes(strCompont);
}
IntPtr dataBuffer = Marshal.AllocHGlobal(1024);
for (i = 0; i < bytesBlock.Length; i++)
{
Marshal.WriteByte(dataBuffer, i, bytesBlock[i]);
}
status = Er302Helper.rf_M1_write(icdev, adr, dataBuffer);
Marshal.FreeHGlobal(dataBuffer);
if (status != 0)
{
MessageBox.Show("NFC写入数据出错！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
// This command will convert the input text string to Ascii hex array then write into the NTAG chip page by page.
public void nfcDataWrite(bool bConnectedDevice, string context)
{
NfcOperate nfcOperate = new NfcOperate();
short icdev = 0x0000;
int status;
byte npage;
int i;
if (!bConnectedDevice)
{
MessageBox.Show("请连接NFC读写器！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
int Len;
Len = context.Trim().Length;
Len = Len + 3; // add Encode bytes(2) and tailer code byte(1)
IntPtr dataBuffer = Marshal.AllocHGlobal(1024);
npage = (byte)(Convert.ToByte(4));
byte[] page4_buf = new byte[] { 0x01, 0x03, 0xa0, 0x10 }; ////Page4_buf[4]={0x01,0x03,0xa0,0x10};//0c
for (i = 0; i < page4_buf.Length; i++)
{
Marshal.WriteByte(dataBuffer, i, page4_buf[i]);
}
status = Er302Helper.rf_ul_write(icdev, npage, dataBuffer);
if (status != 0)
{
MessageBox.Show("Write page 4 failed!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
npage = (byte)(Convert.ToByte(5));
byte[] page5_buf = new byte[] { 0x44, 0x03, (byte)(Len + 4), 0xd1 };
for (i = 0; i < page5_buf.Length; i++)
{
Marshal.WriteByte(dataBuffer, i, page5_buf[i]);
}
status = Er302Helper.rf_ul_write(icdev, npage, dataBuffer);
if (status != 0)
{
MessageBox.Show("Write page 5 failed!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
npage = (byte)(Convert.ToByte(6));
byte[] page6_buf = new byte[] { 0x01, (byte)Len, 0x54, 0x02 };
for (i = 0; i < page6_buf.Length; i++)
{
Marshal.WriteByte(dataBuffer, i, page6_buf[i]);
}
status = Er302Helper.rf_ul_write(icdev, npage, dataBuffer);
if (status != 0)
{
MessageBox.Show("Write page 6 failed!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
int tPage = 0; // Total Pages
tPage = Len / 4;
int j = Len % 4;
int k = 0; // fill zero counter
if (j > 0)
{
tPage = tPage + 1;
k = 4 - j;
}
string sZero = "00";
string sFillTail = string.Empty;
if (k > 0)
{
for (i = 0; i < k; i++)
{
sFillTail += sZero;
}
}
byte[] bEncode = new byte[] { 0x65, 0x6e };
string sEncode = string.Empty;
for (i = 0; i < bEncode.Length; i++)
{
sEncode += Convert.ToString(bEncode[i], 16);
}
byte[] bTrailer = new byte[] { 0xfe };
string sTailer = string.Empty;
for (i = 0; i < bTrailer.Length; i++)
{
sTailer += Convert.ToString(bTrailer[i], 16);
}
byte[] bytesBlock;
bytesBlock = Encoding.ASCII.GetBytes(context.Trim());// Convert the string input to ascii code bytes.
string sInput = string.Empty;
for (i = 0; i < bytesBlock.Length; i++)
{
sInput += Convert.ToString(bytesBlock[i], 16);
}
string sComb = string.Empty;
sComb += sEncode;
sComb += sInput;
sComb += sTailer;
sComb += sFillTail;
bytesBlock = nfcOperate.ToDigitsBytes(sComb); // convert to hex byte string
int ofs;
for (j = 7; j < tPage + 7; j++)
{
ofs = (j - 7) * 4;
for (i = 0; i < 4; i++)
{
Marshal.WriteByte(dataBuffer, i, bytesBlock[i + ofs]);
} // copy to pointer buffer
status = Er302Helper.rf_ul_write(icdev, (byte)j, dataBuffer);
if (status != 0)
{
MessageBox.Show("NFC写入失败！", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
Marshal.FreeHGlobal(dataBuffer);
int color = 2;// 2:red led light ,1: blue light,0: led off
Er302Helper.rf_light(icdev, (byte)color);
int delaytime = 50;
Er302Helper.rf_beep(icdev, (byte)delaytime);
color = 0;
Er302Helper.rf_light(icdev, (byte)color);
color = 1;
Er302Helper.rf_light(icdev, (byte)color);
MessageBox.Show("NFC写入成功！", "OK", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
public string ReadNfcId(bool bConnectedDevice)
{
string nfcId = string.Empty;
short icdev = 0x0000;
int status;
// byte type = (byte)'A';//mifare one type is A 卡询卡方式为A
byte mode = 0x26; // Request the card which is not halted.
ushort TagType = 0;
byte bcnt = 0x04; //mifare 卡都用4, hold on 4
IntPtr pSnr;
byte len = 255;
sbyte size = 0;
if (!bConnectedDevice)
{
MessageBox.Show("请连接NFC读写设备", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(nfcId);
}
pSnr = Marshal.AllocHGlobal(1024);
for (int i = 0; i < 2; i++)
{
// status = rf_antenna_sta(icdev, 0);//关闭天线 close antenna
// if (status != 0)
// continue;
// Sleep(20);
// status = rf_init_type(icdev, type);
// if (status != 0)
// continue;
// Sleep(20);
// status = rf_antenna_sta(icdev, 1);//启动天线 Open antenna
// if (status != 0)
// continue;
// Sleep(50); // After open the antenna, it needs about 50ms delay before request.
status = Er302Helper.rf_request(icdev, mode, ref TagType);//搜寻没有休眠的卡，request card
if (status != 0)
{
continue;
}
status = Er302Helper.rf_anticoll(icdev, bcnt, pSnr, ref len);//防冲突得到返回卡的序列号, anticol--get the card sn
if (status != 0)
{
continue;
}
status = Er302Helper.rf_select(icdev, pSnr, len, ref size);//锁定一张ISO14443-3 TYPE_A 卡, select one card
if (status != 0)
{
continue;
}
byte[] szBytes = new byte[len];
for (int j = 0; j < len; j++)
{
szBytes[j] = Marshal.ReadByte(pSnr, j);
}
String m_cardNo = String.Empty;
for (int q = 0; q < len; q++)
{
m_cardNo += byteHEX(szBytes[q]);
}
nfcId = m_cardNo;
break;
}
Marshal.FreeHGlobal(pSnr);
return(nfcId);
}
public void InitNfcEr302()
{
#warning 这里确定一个检测NFC读写器是否连接着
if (bConnectedDevice)
{
try
{
int status = Er302Helper.rf_init_com(configData.CurrentPort, configData.CurrentBaud);
if (status == 0)
{
bConnectedDevice = true;
}
else
{
bConnectedDevice = false;
}
}
catch (Exception exception)
{
bConnectedDevice = false;
}
ChangeIconColor();
}
if (!bConnectedDevice)
{
int status = -1;
if (!bConnectedDevice)
{
try
{
status = Er302Helper.rf_init_com(configData.CurrentPort, configData.CurrentBaud);
if (status == 0)
{
bConnectedDevice = true;
}
}
catch (Exception exception)
{
}
}
if (!bConnectedDevice)
{
for (int i = 1; i < 16; i++)
{
foreach (var baud in baudList)
{
try
{
status = Er302Helper.rf_init_com(i, baud);
}
catch (Exception exception)
{
Console.WriteLine(exception);
status = 2;
}
if (0 == status)
{
bConnectedDevice = true;
configData.CurrentPort = i;
configData.CurrentBaud = baud;
break;
}
}
if (0 == status)
{
break;
}
}
bConnectedDevice = false;
}
ChangeIconColor();
}
}
